How much do you know about PORON for industrial design?

The word foam is not strange to everyone. It is a common object in our life. For example, the EVA floor mat in the playground where children often go, and the EVA anti-slip mat under the table lamp chassis, etc., can be found in life. So let's have a simple understanding of what foam in the end.

First, what are the total types of foam?

Foam is divided into PU foam, anti-static PE foam, conductive foam, EPE, EPDM, EPP, PORON, CR, EVA, XPE/IXPE foam, etc.

It has a series of characteristics, such as easy to use, flexible bending, ultrathin volume and reliable performance.

Second, what are the characteristics of foam

Low pressure very good shielding effect, shielding efficiency more than 90dB.

● Elastic, light weight.

● Anti-corrosion nickel coating can prevent electrochemical corrosion.

● Low surface contact resistance.

● Fast pressure sensitive fixation.

● Customer can specify length.

● Many cross section choices.

●UL fire protection.

The product quality is stable, heat resistant pressure, not easy to fall off, high tensile strength, the product installed, after the low temperature -20℃ to high temperature 80℃, cycle cycle test 72 hours still maintain the quality. It has a series of characteristics, such as easy to use, flexible bending, ultrathin volume and reliable performance.

First to here, some people must see, feel a little familiar, yes, are moved from the Internet, are from Baidu encyclopedia, so next, we are commonly used several individual understanding.

PU foam

1, PU foam is also known as PU sponge, PU foaming material, polyurethane sponge, sponge, etc., is a new type of special multi-functional foaming material.

Is it like a dishcloth that you buy at home for washing dishes? Yeah, that's it, and it's used on the seat of a car, and it's used to play when you're a kid, and it burns with a lighter, and it stinks.

This is basically used in packaging for our electronic industry, that is, pad, protective layer, etc.

2, PU foam cotton soft, heat resistant (can withstand 200 degrees), easy to burn (can add flame retardant), is the product of polyurethane and TDI or MDI adhesive reaction produced by plastic. According to the size of the inner bubble, can be displayed in a variety of densities, according to the need to mold the way into a variety of shapes. That is, depending on the amount and size of the foam, you can change the hardness and texture. So you'll find that some are soft to the touch and some are hard.

3, PU foam classification:

PU foam mainly includes polyester and polyether type, including air, water and oil filtration filtration sponge, absorbent sponge, non-absorbent sponge, cushioning shock absorbent, breathable impermeable crusting sponge, antistatic sponge, ordinary sponge series, slow rebound sponge series, injection sponge series, process sponge series.

4, PU foam characteristics:

It has the characteristics of heat preservation, heat insulation, sound absorption, shock absorption, flame retardant, anti-static, good permeability and so on.

5, PU foam for the use of electronic products:

Product packaging, horn box structure shock absorption, PCB motherboard grounding (using conductive PU coating), special structural parts, etc.